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scsi: aacraid: Use hotplug handling function in place of scsi_scan_host

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Driver uses scsi_scan_host to add new devices in the driver init path,
which adds all the fw exposed devices. The drivers resorts to queue
command checks to block out commands to _hidden_ devices.

Use the hotplug handler code to add new devices during driver init and
other areas, this is only for safw. For ARC scsi_scan_host will still
apply.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta 2017-12-26 20:34:45 -08:00 committed by Martin K. Petersen
parent 3395614e48
commit 8ebaa67fc2
4 changed files with 19 additions and 9 deletions
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4
drivers/scsi/aacraid/aachba.c
View file

@ -2150,10 +2150,6 @@ int aac_get_adapter_info(struct aac_dev* dev)
dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
}
if (!dev->sync_mode && dev->sa_firmware &&
dev->supplement_adapter_info.virt_device_bus != 0xffff)
rcode = aac_setup_safw_adapter(dev, AAC_INIT);
if (!dev->in_reset) {
char buffer[16];
tmp = le32_to_cpu(dev->adapter_info.kernelrev);

1
drivers/scsi/aacraid/aacraid.h
View file

@ -2719,6 +2719,7 @@ static inline int aac_supports_2T(struct aac_dev *dev)
return (dev->adapter_info.options & AAC_OPT_NEW_COMM_64);
}
int aac_scan_host(struct aac_dev *dev, int rescan);
char * get_container_type(unsigned type);
extern int numacb;
extern char aac_driver_version[];

18
drivers/scsi/aacraid/commsup.c
View file

@ -1964,6 +1964,19 @@ static int aac_update_safw_host_devices(struct aac_dev *dev, int rescan)
return rcode;
}
int aac_scan_host(struct aac_dev *dev, int rescan)
{
int rcode = 0;
mutex_lock(&dev->scan_mutex);
if (dev->sa_firmware)
rcode = aac_update_safw_host_devices(dev, rescan);
else
scsi_scan_host(dev->scsi_host_ptr);
mutex_unlock(&dev->scan_mutex);
return rcode;
}
/**
* aac_handle_sa_aif Handle a message from the firmware
* @dev: Which adapter this fib is from
@ -1997,9 +2010,8 @@ static void aac_handle_sa_aif(struct aac_dev *dev, struct fib *fibptr)
case SA_AIF_LDEV_CHANGE:
case SA_AIF_BPCFG_CHANGE:
mutex_lock(&dev->scan_mutex);
aac_update_safw_host_devices(dev, AAC_RESCAN);
mutex_unlock(&dev->scan_mutex);
aac_scan_host(dev, AAC_RESCAN);
break;
case SA_AIF_BPSTAT_CHANGE:

5
drivers/scsi/aacraid/linit.c
View file

@ -1787,7 +1787,8 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_deinit;
scsi_scan_host(shost);
aac_scan_host(aac, AAC_INIT);
pci_enable_pcie_error_reporting(pdev);
pci_save_state(pdev);
@ -2071,7 +2072,7 @@ static void aac_pci_resume(struct pci_dev *pdev)
if (sdev->sdev_state == SDEV_OFFLINE)
sdev->sdev_state = SDEV_RUNNING;
scsi_unblock_requests(aac->scsi_host_ptr);
scsi_scan_host(aac->scsi_host_ptr);
aac_scan_host(aac, AAC_RESCAN);
pci_save_state(pdev);
dev_err(&pdev->dev, "aacraid: PCI error - resume\n");